Denture



p 1934- s. E. LINCHITZ 1,972,596

DENTURE Filed Jan. 22. 1934 INVENTOR ATroRNEY Patented Sept. 4, 193 4 1 t I UNITED STATES PATENT OFFICE, Y

DENTURE samuel E. Linchitz, New Yoia'N. Y. x 7 Application January 22, 1934, Serial No. 707,722

12 Claims. (01. 32-4) The present invention is concerned with arti of the denture whereby .upon the initial displaceficial teeth particularly adapted to be removably ment of a companion and cooperatingwall of secured to the gums within the mouth of the the pouch'means and subsequent release thereof user by suction. V the aforementionedintervening part of the body More particularly, however, theinvention has is heldto the. surface of the gum by suction. 6t. to do with an improved roofless denture hav- Otheraspects, objects, features and advantages ing means for disconnect-ably holding one or more of the invention may be better understood of the. normally expandible resilient pouches out of conpreferred embodiments hereinafter specifically tact with the surfaces of the gum and spaced described and although such embodiments are therefrom. merely described as illustrative of the invention 65..

In one aspect of the invention, the denture and not to be considered as limitations thereon, comprises a casing adapted to conveniently and the invention will be betterv understood from a di connectably receive air expelling means --in consideration of such specific proceedings and the form of collapsible pockets or pouches to teachings thereof and for. this purpose and to permit a palate or arch shaped portion of the aid the following specific description, reference 70.

denture to be held against the roof of the mouth. is made to the accompanying drawing in which:-'-

According to the invention, the denture is pro- Fig. 1 is an elevational view of .myimproved vided with spaced casings suitably embedded or denture according to the invention. 1 cast in the body thereof such that the material Fig. 2 isa section on the line 2-2 of Fig.1;

of the body constitutes an intervening instru- Fig. 3 is a section ontheline 33 of Fig. 1. 75 A mentality between the surfaces of the'gums and Fig. 4 is a sectional view of a slightly. modified the innermost wall or complement of expandible pouch receiving casing. I y and deflatable pouches or pockets removably Fig. 5 is a view in-perspective of .my-improved confinedand associated with resmctive casings. pouch.

As another aspect, the invention provides The denture, according to the invention is gen- 8Q. pouch means comprising complementary juxtaerally designated 10 and may be made of any suitposed walls having their facing marginal portions able moldable material employed in the art of are. appropriately secured as to form a Lmitary petificial dentistry. Teeth as 11 are secured to the ripheral rim disconnectably mounted within a. rim of the. plate or denture and the. latteris apcontinuouschannel or groove of; a pouch carryp p a y p d to Confo m to the i regu1ari-' $5 ing member or casing previouslyanchored to and ties of the gum of the mouth as is well understood. held by the body-of the denture. r A As illustrated, the denture has been designed for The invention has as ,a further aspect, the r mova le atta hment to a gvln p n ing from provision 1 f a'denture adapted to be disconnectthe roof of the mouth. It should be understood,

ably secured to the surface of the roof of the however, that the denture according to the inven- 9o month by removably associated pouches each tion may be SO d s g ed and cast for disconnect-J comprising of opposed elastic or complementary e a soc i with h p n in sums o the sections normally having their central portions lower jaw. According t th Showing of s- 11 Widely separated. to constitute an air receiving and 2, the denture illustrated, is of the fl ss chamber in which the air is initially compressed yp to the medial P Of t Pa te Q al'eh and subsequently slightly expanded to create a. 12 thereof has been cut away. pneumatic force to 'hold the'bodyoi the denture pp p ly .anehored b d With n to the surfaces ofthe gum. the lower part of each of the inclined sides of the The invention has 'as a further aspect the pa a r a h f plate is afrafne or s g;

45 provision of a denture having spaced frames cast" broadly designated 13. According to Fig. 3, the loo therein each to removably holdpouch means for casing-comprises a continuously closed channeh disconnectably holding the denture to a gum of shaped rim ,14 having spaced front and rear walls the mouth, the frames being interconnected by or margins 15and 16 which are interconnected by brace means to reinforce the denture. a common side wall 1'7. These walls form an in- 0 The invention has as a further aspect, the wardly disposed continuous channel or groove to provision of novel pouch means comprising comremovably receive and retain the relatively recplementary elastic Walls or elements one of which tilinea y mar in l rim P n esil ent is providedwith relatively small spaced perforaand elastic pouch or pocket generallydenoted 20, tions disposed in registration with correspond- To prevent movement of a frame or casingrel- 5 ing openings of an intervening part of the'body ative to, the body of the plate, prongs as lse t i lid ing laterally of the sides 17 are provided and these prongs are anchored and embedded in the moldable material of the plate preparatory to its settling or hardening about the rear and side walls of the casing or frame, it being noted that the moldable material of the plate is so cast as to have the lower surface thereof substantiallyfiush with the outer surface of the wall 15 which according to the embodiment of Fig. 3 defines an uninterrupted intermarginal opening 21, in registration with a corresponding opening 22 formed by the rear wall 16 of the casing.

The pouch 20 comprises complementary parts or sections in the form of spaced elastic juxtaposed rubber or elastic walls 23 and 24. having their inside contiguous marginalfaces suitably vulcanized or otherwise appropriately sealed,-

hence forming an air chamber 25.

The pouches according to the invention are inserted in the frames or casings cast in the inclined sides of the denture plate, that is to say, marginalrim 20 of a pouch is removably held or retained within the continuous channel or recess of a casing. It will be noted that the upper elastic complement 24 is providedwith spaced openings or orifices 26 which are in registration with similar openings 2'7 in the arch of theplate, the top surface of complement 24: being held by its own resiliency against a relatively smooth arcuate face 28 of the arch of the intervening part 29 of the plate.

Thus assembled, the lower complement of the pouch assumes a position to extend beyond the opening 21 as indicated by the dash and dot line in Fig. 3. Stated in another way, normally, there is a relatively wide gap between the central parts of the arcuate complements of a respective pouch such that when the denture is not attached to a gum of the mouth, air will enter the chamber 25 between thecomplements through registering orifices 26 and 27, to hold'the pouch relatively expanded.

When the denture is placed about the upper gum of the mouth and it is desired to secure the same thereto, complement 23 is first pressed inwardly or towards the companion complement 24,

hence the gap between the complements is re-' duced. If pressure be now removed from complement 23, the latter is held from completely retracing provided opening 2'? of the sides of the arch had been previously placed against the gum of the mouth, that is to.s ay, a partial vacuum is formed, thus holding part 29 of the arch against the gum of the mouth by suction, the part 29 for purposes of description may be considered as an intervening instrumentality between the'gum'of the mouth and the elastic and collapsible pouches, e. g. by reason of the intervening parts as 29, no part of the elastic pouches is in contact with the gum of the mouth. I

In the form according to Fig. 4,.the rear wall of the casing orframe is in the form of arcuate plate 30 having spaced perforations 31 in alinement with openings 26 of the upper complement of the pouch. Side 14 depending from plate 30 in'association with front wall or inwardly extending flange 15 constitute rim means defining a channel as in the case of the form according to Fig. 3 for removably receiving rim 19 of 'a pouch 20. The casing according to Fig. 4 is also provided with prongs as 18 to prevent displacement thereof after having been cast in the body of the denture and the openings 3lthereof are in registration with openings as 27 of the intervening part 29 and if the pouch be inserted in the rim, openings 31 would be in registration with openings 26.

To reinforce the intermediate part 12 of the palate the casings 13 on opposite sides of the arch are interconnected by a suitable integrally associated flat brace or metal strip 32 which is cast into the body of the denture and has its outside surface coincident with the lower surface of the crown.

In Fig. 1 the frames or casings on opposed sides of the arch are interconnected by a common reinforcing brace 32. If desired this brace may be omitted. Further it is within the scope of the invention to utilize the frame construction according to Fig. 4 in place of the frames of the type shown in'connection with Fig. 3. If this substitution be made, a pair of spaced frames of the type shown in Fig. 4, if desired, may also be interconnected as is well apparent by a common intervening reinforcing brace as 32 although it is to be understood that the invention is not limited in this respect.

Many modifications of the invention will be apparent to those skilled in the art without departing therefrom or from the scope of the appended claims and since the foregoing has been given by way of example only for purposes of understanding of the principles underlying the invention, no unnecessary limitations should be inferred and/or understood and the appended claims should be construed as broadly as the state of the art permits.

I claim:

1. A denture comprising a palate having inclined perforated sides, a frame mounted in each side, and pouch means disconnectably associated with each frame.

2. A denture comprising a perforated palate, frame means attached tosaid palate, and pouch means disconnectably carried by said frame means.

'3. A denture comprising a perforated palate, frame means attached to said palate, and pouch means disconnectably carried by said frame means comprising opposed complementary resilie'nt walls, one of which includes a portion normally extending beyond said frame and the other thereof having perforations disposed in registration with the perforations of said palate.

4. A denture comprising a perforated palate, frame means attached to said palate and having a pouch receiving groove, pouch means comprising a pair of juxtaposed elastic walls defining a sealed peripheral rim, said rim being removably receivable in said groove, one of said walls having perforations disposed in registration with the perforations of said palate and. the other wall of said pair having a central portion normally spaced from said perforated 'wall.

5. A denture adapted to be secured to the gum of a mouth by suction comprising a palate having an intermediate perforated part, a frame carried by said part, pouch means'removably mounted in said frame comprising a pair of opposed and spaced elastic Walls'one of which includes perforations disposed in alinement with'the perforations of said intermediate part of the palate and another thereof being adapted to be first displaced towards said perforated wall to compress the air between said walls and subsequently create a partial vacuum therebetween to hold said palate against the gum of the mouth.

6. A denture having a perforated palate, spaced frames carried by said palate, collapsible and expandible perforated pouch means removably mounted in each frame and an intervening reinforcing member interconnecting said frames and secured to said palate.

'7. A denture having a perforated palate, a frame secured thereto and having rim means, a perforated wall interconnecting saidrim means and collapsible and expandible perforated pouch means removably mounted in said rim means.

8. As a new article of manufacture, a pouch comprising a pair of opposed elastic walls having their facing marginal portions sealed and interinarginal portions normally spaced apart to constitute an air chamber, one of said walls having one or more perforations, the other wall of said pair being adapted to be displaced towards said wall to expel air from said chamber.

9. As a new article of manufacture, a pouch comprising a pair of opposed elastic walls'having their relatively rectilinear marginal portions sealed and their intermarginal portions normally spaced apart to constitute an air chamber, one of said walls having one or more perforations, the other wall of said pair being adapted to be displaced towards said wall to expel air from said chamber, said marginal sealed portions defining a continuous peripheral rim.

10. A denture adapted to be secured to the gum of a mouth by suction comprising a palate having an intermediate perforated part, a relatively elongated frame secured to said part, a perforated expandible and contractible pouch removably mounted in said frame, said pouch having an imperforated wall normally extending beyond said frame and a perforated wall out of contact with said gum and disposed adjacent said perforated part.

11. A denture adapted to be secured to the gum of a mouth by suction comprising a palate having an intermediate perforated part, a relatively elongated frame secured to said crown and having a perforated walldisposed alongside of said intermediate perforated part, a perforated collapsible and expandible pouch removably mounted on said frame, said pouch having an imperforated wall having a central portion normally disposed beyond the limits of said frame and a perforated wall out of contact with said gum and disposed against the perforated wall of said frame, the

perforations of said perforated walls and the perice 7 

